X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 14 Sep 2005 23:31:59 -0400 Message-ID: X-Original-Return-Path: Received: from [64.4.43.61] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 5.0c2) with ESMTP id 722440 for lml@lancaironline.net; Wed, 14 Sep 2005 23:30:21 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.4.43.61; envelope-from=bill_kennedy_3@hotmail.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 14 Sep 2005 20:29:37 -0700 X-Original-Message-ID: Received: from 206.173.55.76 by by17fd.bay17.hotmail.msn.com with HTTP; Thu, 15 Sep 2005 03:29:36 GMT X-Originating-IP: [206.173.55.76] X-Originating-Email: [bill_kennedy_3@hotmail.com] X-Sender: bill_kennedy_3@hotmail.com In-Reply-To: From: "Bill Kennedy" X-Original-To: lml@lancaironline.net X-Original-Bcc: Subject: RE: [LML] Re: airframe vibration X-Original-Date: Wed, 14 Sep 2005 20:29:36 -0700 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 15 Sep 2005 03:29:37.0164 (UTC) FILETIME=[B2DF2CC0:01C5B9A5] I'd like to see some expert comment on the nature of the "hum" caused by loose aileron hinge. How dangerous is such a vibration, and what should be done in addition to repairing the hinge. Thanks Bill Kennedy > > Subject: [LML] Re: airframe / elevator vibration > > > > > > Replaced the left outboard elevator hinge at 500 hrs( it had some play) >and a low pitched hum went away. I think it had something to do with air >flowing over the flap, cause it would seem to come and go with different >flap settings from "in trail" to total reflex of an inch and a quarter or >so.. Of course, it could have been the flap vibrating, but the hinge was >easy and was done first,end of hum ... Don Skeele A&P